Oxygen Delivery Devices Questions with Correct Answers (Grade
A+)
Question 1: Nasal Cannula
Answer: Usually used for patients who are noncritical with minor breathing problems and for patients who
can't/won't wear an oxygen mask. Because this device administers low-flow oxygen, humidification is
rarely required.
Question 2: NC Oxygen Delivery
Answer: Flow: 1-2L - FiO2: 24% to 38% Flow: 3-4L - FiO2: 30% to 35% Flow: 5-6L - FiO2: 38% to 44%
A nasal cannula delivers oxygen concentrations of 22% to 50% with flow rates from 1 to 6 L/min through
the cannula.
Question 3: NC Pros
Answer: Comfortable, inexpensive, continuous use with meals and activity, no risk for rebreathing CO2
Question 4: NC Cons
Answer: Can't deliver high rates of oxygen, Variable FiO2 per respirations
Question 5: Simple Face Mask
Answer: A simple mask is usually indicated for patients who require a moderate flow rate for a short period
of time. About 75% of the inspired volume is room air that the patient breathes through the holes in the side
of the mask.
Question 6: Simple Mask Oxygen Delivery
Answer: Flow: 8-12L - FiO2: 35% to 65% A simple mask has the ability to deliver oxygen concentrations
of 40% to 60% with flow rates from 6 to 10 L/min.
Question 7: Simple Mask Pros
Answer: Easier to use than other masks, wide range of oxygen delivery, extension tubing can let Pt. move
more
Question 8: Simple Mask Cons
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A+)
Question 1: Nasal Cannula
Answer: Usually used for patients who are noncritical with minor breathing problems and for patients who
can't/won't wear an oxygen mask. Because this device administers low-flow oxygen, humidification is
rarely required.
Question 2: NC Oxygen Delivery
Answer: Flow: 1-2L - FiO2: 24% to 38% Flow: 3-4L - FiO2: 30% to 35% Flow: 5-6L - FiO2: 38% to 44%
A nasal cannula delivers oxygen concentrations of 22% to 50% with flow rates from 1 to 6 L/min through
the cannula.
Question 3: NC Pros
Answer: Comfortable, inexpensive, continuous use with meals and activity, no risk for rebreathing CO2
Question 4: NC Cons
Answer: Can't deliver high rates of oxygen, Variable FiO2 per respirations
Question 5: Simple Face Mask
Answer: A simple mask is usually indicated for patients who require a moderate flow rate for a short period
of time. About 75% of the inspired volume is room air that the patient breathes through the holes in the side
of the mask.
Question 6: Simple Mask Oxygen Delivery
Answer: Flow: 8-12L - FiO2: 35% to 65% A simple mask has the ability to deliver oxygen concentrations
of 40% to 60% with flow rates from 6 to 10 L/min.
Question 7: Simple Mask Pros
Answer: Easier to use than other masks, wide range of oxygen delivery, extension tubing can let Pt. move
more
Question 8: Simple Mask Cons
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